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spirv: Implement VertexId and InstanceId, refactor code

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This commit is contained in:
ReinUsesLisp
2021-03-20 19:11:56 -03:00
committed by ameerj
parent e802512d8e
commit 76c8a962ac
10 changed files with 244 additions and 144 deletions
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46
src/shader_recompiler/backend/spirv/emit_spirv_memory.cpp
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@ -7,8 +7,8 @@
#include "shader_recompiler/backend/spirv/emit_spirv.h"
namespace Shader::Backend::SPIRV {
static Id StorageIndex(EmitContext& ctx, const IR::Value& offset, size_t element_size) {
namespace {
Id StorageIndex(EmitContext& ctx, const IR::Value& offset, size_t element_size) {
if (offset.IsImmediate()) {
const u32 imm_offset{static_cast<u32>(offset.U32() / element_size)};
return ctx.Constant(ctx.U32[1], imm_offset);
@ -22,6 +22,32 @@ static Id StorageIndex(EmitContext& ctx, const IR::Value& offset, size_t element
return ctx.OpShiftRightLogical(ctx.U32[1], index, shift_id);
}
Id EmitLoadStorage(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset,
u32 num_components) {
// TODO: Support reinterpreting bindings, guaranteed to be aligned
if (!binding.IsImmediate()) {
throw NotImplementedException("Dynamic storage buffer indexing");
}
const Id ssbo{ctx.ssbos[binding.U32()]};
const Id base_index{StorageIndex(ctx, offset, sizeof(u32))};
std::array<Id, 4> components;
for (u32 element = 0; element < num_components; ++element) {
Id index{base_index};
if (element > 0) {
index = ctx.OpIAdd(ctx.U32[1], base_index, ctx.Constant(ctx.U32[1], element));
}
const Id pointer{ctx.OpAccessChain(ctx.storage_u32, ssbo, ctx.u32_zero_value, index)};
components[element] = ctx.OpLoad(ctx.U32[1], pointer);
}
if (num_components == 1) {
return components[0];
} else {
const std::span components_span(components.data(), num_components);
return ctx.OpCompositeConstruct(ctx.U32[num_components], components_span);
}
}
} // Anonymous namespace
void EmitLoadGlobalU8(EmitContext&) {
throw NotImplementedException("SPIR-V Instruction");
}
@ -95,21 +121,15 @@ void EmitLoadStorageS16(EmitContext&) {
}
Id EmitLoadStorage32(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset) {
if (!binding.IsImmediate()) {
throw NotImplementedException("Dynamic storage buffer indexing");
}
const Id ssbo{ctx.ssbos[binding.U32()]};
const Id index{StorageIndex(ctx, offset, sizeof(u32))};
const Id pointer{ctx.OpAccessChain(ctx.storage_u32, ssbo, ctx.u32_zero_value, index)};
return ctx.OpLoad(ctx.U32[1], pointer);
return EmitLoadStorage(ctx, binding, offset, 1);
}
void EmitLoadStorage64(EmitContext&) {
throw NotImplementedException("SPIR-V Instruction");
Id EmitLoadStorage64(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset) {
return EmitLoadStorage(ctx, binding, offset, 2);
}
void EmitLoadStorage128(EmitContext&) {
throw NotImplementedException("SPIR-V Instruction");
Id EmitLoadStorage128(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset) {
return EmitLoadStorage(ctx, binding, offset, 4);
}
void EmitWriteStorageU8(EmitContext&) {